Integrated polarizer based on 45° tilted gratings.
Integrated polarizer based on 45° tilted gratings.
复制标题
基于 45° 倾斜光栅的集成偏振器。
DOI：
10.1364/oe.27.011174
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发表时间：
2019
期刊：
影响因子：
3.8
通讯作者：
J. Gates
中科院分区：
文献类型：
--
作者：
M. T. Posner;N. Podoliak;Devin H. Smith;P. Mennea;P. Horák;C. Gawith;Peter G. R. Smith;J. Gates
我们报告了基于在平面波导中使用45°倾斜光栅的偏振器的第一个集成实现。波导和光栅是通过直接紫外写入氢化锗掺杂硅片上的硅制成的。我们通过实验证明，在1530-1570 nm的C波段上，20 mm器件每单位长度的偏振消光比为0.25 dB mm -1，模型波长依赖性小于0.3 dB。我们还提出了一种新的数值研究和结构的分析描述，与实验数据相吻合。
We report the first integrated implementation of a polarizer based on the use of 45° tilted gratings in planar waveguides. The waveguides and gratings are fabricated by direct UV writing in a hydrogenated germanium-doped silica-on-silicon chip. We experimentally demonstrate a polarization extinction ratio per unit length of 0.25 dB mm -1 with a modelled wavelength dependence smaller than 0.3 dB for a 20 mm device over the C band from 1530-1570 nm. We also present a novel numerical study and analytical description of the architecture that are in good agreement with each other and the experimental data.